𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Aryl cations: Searching for and assigning structures to [C7H5]+ isomers

✍ Scribed by Martine C. Bissonnette; M. George; John L. Holmes

Publisher
John Wiley and Sons
Year
1991
Tongue
English
Weight
397 KB
Volume
26
Category
Article
ISSN
1076-5174

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

The energetics and mass spectral characteristics of a number of [C~7~H~5~]^+^ ions have been examined. No compelling evidence could be found to show that the 2‐cyclopropaphenyl cation was produced by loss of bromine from the ionized 2‐bromo derivative. It was proposed that the ethynylcyclopentadienyl cation may be the global minimum on the [C~7~H~5~]^+^ hypersurface.

📜 SIMILAR VOLUMES

1H and 13C spectral assignment of 4-aryl
1H and 13C spectral assignment of 4-aryl-1,4,5,6,7,8-hexahydro-2,7,7,5-oxo-quinolines 3-substituted derivatives
✍ Esperanza Salfrán; Margarita Suárez; Dolores Molero; Roberto Martínez-Álvarez; Y 📂 Article 📅 2006 🏛 John Wiley and Sons 🌐 English ⚖ 92 KB

## Abstract The ^1^H and ^13^C NMR spectroscopic data for 4‐aryl‐1,4,5,6,7,8‐hexahydro‐2,7,7,5‐oxo‐quinoline 3‐substituted derivatives have been fully assigned by the combination of one‐ and two dimensional experiments (DEPT, HMBC, HMQC, COSY, NOE). Copyright © 2006 John Wiley & Sons, Ltd.

Assigning structures to isomeric [C5H10]
Assigning structures to isomeric [C5H10]+ ions: The generation of ionized ethylcyclopropane from pentan-1-ol and 1-chloropentane
✍ D. Harnish; J. L. Holmes; F. P. Lossing; A. A. Mommers; A. Maccoll; M. N. Mruzek 📂 Article 📅 1990 🏛 John Wiley and Sons 🌐 English ⚖ 497 KB

## Abstract The charge‐stripping mass spectra of the ten C~5~H~10~ isomers and of cyclopropane and propene have been re‐evaluated. Oxygen is the preferred collision gas for the former group and helium for the latter pair. A con bined study of the low‐energy mass spectra, charge‐stripping mass spect

Ab initio SCF MO results for the carbora
Ab initio SCF MO results for the carborane isomers 3,5-C2B6H8, 1, 7-C2B7H9, and 1,2-C2B7H9
✍ Benjamin M. Gimarc; Baiching Dai; Jane J. Ott 📂 Article 📅 1989 🏛 John Wiley and Sons 🌐 English ⚖ 246 KB

We report the geometry-optimized total energies and bond distances for the closo-carborane isomers 3,5-CzB6H8, 1,7-CzB7Hs, and 1,2-CzB7Hs calculated by the ab initio SCF MO method using the STO-3G basis set. Relative energies are compared with those of the other carborane isomers in the 8-and 9atom

Pyrazolo[1,5-a]pyrimidines. A combined m
Pyrazolo[1,5-a]pyrimidines. A combined multinuclear magnetic resonance (1H, 13C, 15N, 19F) and DFT approach to their structural assignment
✍ Dionisia Sanz; Rosa M. Claramunt; Anil Saini; Vinod Kumar; Ranjana Aggarwal; Shi 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 English ⚖ 166 KB

## Abstract Multinuclear magnetic resonance spectroscopy together with GIAO‐DFT calculations allowed establishment of the structure of the products obtained by condensation of 3(5)‐amino‐4‐phenyl‐1__H__‐pyrazole and β‐dicarbonyl compounds bearing a trifluoromethyl group. They are 3‐phenyl‐5‐(__R__)